Penpot is the first open-source design & prototyping tool for product teams, that allows full collaboration between designers and developers thanks to features such as Flex Layout and Code Inspect.
- - Penpot is the most popular Web-based & Self-Hosted alternative to Balsamiq Wireframes.
- - Penpot is the most popular Open Source & free alternative to Balsamiq Wireframes.
Pencil is a standalone app that lets you create diagrams or UI mockups. It doesn't have collaboration/multi-user features.
- - Pencil Project is the most popular Windows, Mac & Linux alternative to Balsamiq Wireframes.
Pencil Project Features
Comments about Pencil Project as a Alternative to Balsamiq Wireframes
It's ok as an alternative, but it fails in creating interactive wireframes11
It's a simple cross-platform tool, but with minimal necessary set of features:
- really cross-platform
- good collections of shapes, which seems are extendable
- export to various formats
No possibility to export to html.-4
All needed in, easy to use, stabel.0
Quite good and lots options, and still free1
Penpot Desktop delivers a desktop-like experience for Penpot users with the additional of integrating tabs to conveniently traverse back and forth between projects. Offline support is available through the select your own instance option in settings, as well as the theme...
Penpot Desktop Features
Wireflow is free, online, real-time collaborative, open source tool for creating beautiful user flow prototypes.
Online tool for creating mockups in the browser. Use your browser’s save function to save the file (just html for view only, complete save for an editable version) or export to codepen for others to view.
Napkee makes your Balsamiq Mockups come alive. Import a BMML and export to web or flex code in a few clicks.Discontinued
The program seems to be no longer updated. Last version, 2.0 alpha 3, released on October 30, 2013, can be still downloaded from the official website.